Just in case you were needing a thermal printer test image …

Thermal Test Image

Here you go, then. It should print perfectly on an 58 mm thermal printer. It features:

  • 12½% grey scales (clockwise, from right) — ordered, Hilbert (clump=5), Floyd-Steinberg, and halftone (4 pixel/cell).
  • Vertical and horizontal test lines.
  • Classy woven background.
  • Roughly 50% grey overall, so shouldn’t cause your printer too much grief.
  • Entirely free of licence restrictions.

very simple python image printer: scruss/esc-pos-image.py

Comments

5 Responses to “Just in case you were needing a thermal printer test image …”

  1. Cyprien Avatar
    Cyprien

    Needed something like this, thank you !

  2. Lizi Avatar
    Lizi

    Is there code that does the same in plain JS? not typescript?

  3. scruss Avatar

    Plain JS? No idea.
    receiptio looks more fun

  4. Konrad Avatar
    Konrad

    Hi, thanks for this I was wondering is there any chance you can make something but for 100x150mm?

  5. scruss Avatar

    I don’t have a use for one, so: no.

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